Low profile medical stent
First Claim
Patent Images
1. A medical stent comprising:
- a proximal end and a distal end opposite the proximal end;
a first tubular body having a constrained state and an expanded state, the first tubular body comprising a first plurality of strands having points of intersection and helically wrapped joints at points of intersection along the first tubular body;
a second tubular body positioned concentrically around the first tubular body, the second tubular body having a constrained state and an expanded state, the second tubular body comprising a second plurality of strands having points of intersection and joints at points of intersection along the second tubular body; and
an offset between the joints of the first tubular body in the constrained state of the first tubular body and the joints the second tubular body in the constrained state of the second tubular body.
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Abstract
A medical prosthesis having a low profile for delivery into a body lumen is disclosed. The stent includes a plurality of wire strands woven to form a plurality of joints at the intersections, some of which are helically wrapped. The helically wrapped joints may be offset form the joints of a second plurality of wire strands concentric to the first. Alternatively, the helically wrapped joints can doubled forming box nodes.
77 Citations
17 Claims
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1. A medical stent comprising:
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a proximal end and a distal end opposite the proximal end; a first tubular body having a constrained state and an expanded state, the first tubular body comprising a first plurality of strands having points of intersection and helically wrapped joints at points of intersection along the first tubular body; a second tubular body positioned concentrically around the first tubular body, the second tubular body having a constrained state and an expanded state, the second tubular body comprising a second plurality of strands having points of intersection and joints at points of intersection along the second tubular body; and an offset between the joints of the first tubular body in the constrained state of the first tubular body and the joints the second tubular body in the constrained state of the second tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical stent comprising:
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a. a proximal end and a distal end opposite the proximal end; b. a first tubular body having a constrained state and an expanded state, the first tubular body comprising a first plurality of strands having points of intersection and helically wrapped joints at points of intersection along the first tubular body; c. a second tubular body positioned concentrically around the first tubular body, the second tubular body having a constrained state and an expanded state, the second tubular body comprising a second plurality of strands having points of intersection and joints at points of intersection along the second tubular body; and d. a cover between the first tubular body and the second tubular body. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification